The SRT to SSA lets you convert SRT to SubStation Alpha (SSA) directly in your web browser. Your file is processed on your device and never uploaded, so it stays completely private. It's free, needs no sign-up and works on any device. You may also know this SRT to SSA tool as SRT to SSA, SRT to SSA online and SRT to SSA free.
How to use SRT to SSA
- Upload your file to the SRT to SSA.
- Choose any options shown.
- Click Convert.
- Download the converted file instantly.
Why use this SRT to SSA tool?
- 100% private — your files are processed on your device and never uploaded.
- Free & unlimited — no sign-up, no watermarks, no daily caps.
- Works everywhere — any modern browser on desktop, tablet or phone.
- Fast — no waiting for uploads or downloads from a server.
Also known as
SRT to SSA, SRT to SSA online, SRT to SSA free, free SRT to SSA.
SRT to SSA FAQs
How do I convert SRT to SSA?
Upload your SRT, press Convert and download the SSA file.
What is the difference between SSA and ASS?
ASS is the newer, advanced version of SSA, with more styling options.
Is the SRT to SSA free?
Yes. Every DigiToolkit media tool is completely free, with no sign-up and no watermarks.
Are my files uploaded to a server?
No. The SRT to SSA runs entirely in your browser. Your files never leave your device, which keeps them private.
Do I need to install anything?
No. The SRT to SSA works in any modern browser on desktop or mobile — nothing to download or install.
Which subtitle formats are supported?
SubRip (.SRT), WebVTT (.VTT), Advanced SubStation Alpha (.ass) and SubStation Alpha (.ssa), plus plain text (.txt).
Will my timings stay accurate?
Yes. Timestamps are parsed precisely to the millisecond and converted without rounding errors.
Does it work on mobile?
Yes, it is mobile-friendly and works on phones, tablets and desktops.
